在同一排量下，对压力的要求越高，调整流量的要求就越大例如，如果工作压力为10MPa,需要调节流量为400L/min;如果调节速度为50mpa,则需要60mpa其主要原理是：在控制系统中，当泵处于低压力时，通过控制电磁阀来控制进口调节阀；当提高压力时，压力升高。

此时，一个低的进口控制阀会关闭液压输入源以减少其对系统造成的损失；然后通过一组小容积阀将压力降低到很低的状态然后在高压进口下实现进口的调节和关闭压力增加如果压力上升且输出变小则通过提高进口阀关闭流量而改变其输出量以实现更低流量所需流量；如果流量减少并保持恒定，则由控制系统调节高压的速度使流量保持恒定；从而达到对流量的调节和调整。

可以通过调节出口压力将控制回路中的油液压入到一个大油缸中，进而实现对液压泵系统液体的精确控制，保证了液压泵和电机系统的工作精度该泵可用于输送粘度不大于50Mpa的油液，其采用齿轮传动，可直接输送到各种液压系统中。

这是目前国外先进技术并且还能用来调节液压系统性能指标要求苛刻的场合该泵可以满足大多数工业对液压液的要求并且可以采用不同类型，在大流量下达到较大压力(>50Mpa),工作压力大于500MPa和流量≥800L/min,并可满足高精度和高效率的要求。

采用单级液压管技术，使系统无阻力地工作在流动状态中，具有稳定性能和高可靠、低噪声等特点，使得泵具有很高的噪声水平和性能产品不仅适合于输送粘性介质、流体温度范围大至85°C也可用于一般工作温度范围内(-40~+180℃）的输送液动力泵在控制系统中，还可用于化工设备、机器、机械配件或流体机械的动力装置等行业中工作。

可以通过对系统内部各部件进行润滑来保证液压泵正常运行这些部件包括压力泵、密封件、油槽和阀座和密封圈，以防止和减少机械部件和传动部件之间的摩擦和噪声这些部件均采用特殊材料，并在使用寿命长这些部件在使用寿命和质量上与液压泵相比有明显优势。

这些部件被润滑液代替了金属油封 90-R-055-KA-5-AB-60-R-3-C6-D-03-GBA-26-26-20 90R055KA5AB60R3C6D03GBA262620 90R055-KA-5-AB-60-S-3-C6-C-03-GBA-26-26-20 90R055KA5AB60S3C6C03GBA262620 90-R-055-KA-5-AB-60-S-3-C6-C-03-GBA-26-26-20 90R055KA5AB60S3C6C03GBA262620 90-R-055-KA-5-AB-60-S-3-C6-C-04-GBA-35-35-24 90R055KA5AB60S3C6C04GBA353524 90-R-055-KA-5-AB-60-S-3-C6-D-03-GBA-26-26-24 90R055KA5AB60S3C6D03GBA262624 90-R-055-KA-5-AB-60-S-3-S1-C-03-GBA-23-23-24 90R055KA5AB60S3S1C03GBA232324 90-R-055-KA-5-AB-60-S-3-T1-C-03-GBA-35-35-20 90R055KA5AB60S3T1C03GBA353520 90-R-055-KA-5-AB-60-S-4-C6-C-03-GBA-32-32-24 90R055KA5AB60S4C6C03GBA323224 90-R-055-KA-5-AB-60-S-4-C6-C-03-GBA-35-35-24 90R055KA5AB60S4C6C03GBA353524 90-R-055-KA-5-AB-60-S-4-C6-D-03-GBA-35-35-24 90R055KA5AB60S4C6D03GBA353524 90-R-055-KA-5-AB-80-L-4-S1-C-03-GBA-35-35-24 90R055KA5AB80L4S1C03GBA353524 90-R-055-KA-5-AB-80-P-4-C6-C-03-GBA-42-42-24 90R055KA5AB80P4C6C03GBA424224 90-R-055-KA-5-AB-80-P-4-C6-D-03-GBA-42-42-24 90R055KA5AB80P4C6D03GBA424224 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